DOCSLIB.ORG

Synthesis and Physicochemical Characterization of Pure Diammonium Phosphate from Industrial Fertilizer M

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Synthesis and Physicochemical Characterization of Pure Diammonium Phosphate from Industrial Fertilizer M Synthesis and Physicochemical Characterization of Pure Diammonium Phosphate from Industrial Fertilizer M. Gargouri, C. Chtara, P. Charrock, Ange Nzihou, H. El Feki To cite this version: M. Gargouri, C. Chtara, P. Charrock, Ange Nzihou, H. El Feki. Synthesis and Physicochemical Characterization of Pure Diammonium Phosphate from Industrial Fertilizer. Industrial and engineer- ing chemistry research, American Chemical Society, 2011, 50 (11), p.6580-6584. 10.1021/ie102237n. hal-01634018 HAL Id: hal-01634018 https://hal.archives-ouvertes.fr/hal-01634018 Submitted on 7 Mar 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Synthesis and Physicochemical Characterization of Pure Diammonium Phosphate from Industrial Fertilizer M. Gargouri,*,† C. Chtara,‡ P. Charrock,§ A. Nzihou,^ and H. El Feki† †Laboratory of Materials Sciences and Environment, Science University of Sfax, 3010 Sfax, University of Sfax, Tunisia. ‡Chemical Group of Tunisia, Gabes §LERISM, IUT P.Sabatier, Castres 81104, France ^ RAPSODEE, Ecole des Mines d0Albi-Carmaux, campus Jarlard, 81013, Albi, France ABSTRACT: Diammonium phosphate (DAP) is produced from industrial phosphoric acid that contains large amounts of anionic and cationic impurities (Co, Cu, Fe, Mn, Mo, Ni, Zn, F, As, Al, Hg, Pb and Cd). Consequently all those impurities will be found in DAP. However, the industrial DAP obtained can be used as fertilizers, but cannot be used for some industrial application like pharmaceutics and cosmetics. After purification, the price of DAP is three times more expensive than the same product before purification. The procedure for purification of industrial DAP is a recrystallization, by using several mixtures of solvents. The physicochemical characterization of this fertilizer upstream and downstream from the purification, through spectroscopic analyses and chemical analyses, shows that recrystallization eliminates impurities. Purified DAP was obtained, the physicochemical properties of which are comparable to those of the pure commercial DAP (Fisher). 1. INTRODUCTION Diammonium phosphate (DAP) is an important commercial fertilizer. The important water-soluble P fertilizers include mono- ammonium phosphate (MAP) and diammonium phosphate (DAP).1 The fertilizer is produced industrially in large quantities via the reaction between gaseous ammonia and green phosphoric acid. The reaction is exothermic; the equation for the neutralization reaction between ammonia and phosphoric acid is as follows:2 2NH H PO f NH HPO 3 þ 3 4 ð 4Þ2 4 When the molar ratio (MR) of ammonia to phosphoric acid is 2, DAP is formed.2 The phosphoric acid used in producing DAP fi can be crude unpuri ed acid obtained by dissolving phosphate Figure 1. Curve solubility of recrystallized DAP. rock with sulfuric acid. In this case, crude DAP results, which may be adequate for some applications. However phosphate rock may followed by reacting ammonia with the resulting extract to obtain contain heavy metals and these can be transferred to the fertilizer, diammonium phosphate containing a small amount of impurities. and further to crops. fi However, this extraction process cannot be regarded as an Two options are available to produce puri ed DAP: (1) use industrially advantageous process owing to its complicated steps.3 purified phosphoric acid; (2) purify the DAP. For producing fi fi Our work began with the puri cation of monoammonium industrial puri ed diammonium phosphate from wet process phosphate (MAP) from industrial fertilizer, and the results are phosphoric acid, it is necessary to purify the phosphoric acid in very encouraging.4 This prompted us to pursue this study on advance according to a process of extracting phosphoric acid another product of the same family, DAP. from wet process phosphoric acid according to a solvent process, In the present work, we are interested in eliminating impurities from industrial DAP. We present here the physicochemical characterization of DAP fertilizer upstream and downstream of Table 1. Chemical Compositions of the DAP Upstream and fi Downstream from the Recrystallization the puri cation process, with an aim to determine the performance P2O5 N H2O MR samples (wt) % (wt)% (wt) % (N/P) pH plant DAP 46.05 17.65 1.50 1.94 7.6 plant DAP recrystallized 49 18 1.68 1.86 7.9 Table 2. Determination the Impurity Present in the DAP Upstream and Downstream from the Recrystallizationa sample (ppm) Fe Al Mg Ag As Co Pb Hg Si Sn Ti Cr Zn Cd Cu Ni Mn V plant DAP 6769 4273 4907 6 26 5419 22 3 150 382 93 525 1203 34 59 25 65 1341 plant DAP recrystallized (water-alcohol) 24 37 14 - 3 3 7 - 70 - 2 27 41 3 4 17 1 47 commercial DAP (Fisher) 15 22 9 - 3 2 7 - 38 - - 25 11 3 2 17 - 9 a Dash (-) = trace. Figure 2. The analysis by means of IR of the industrial DAP upstream from the recrystallization. Figure 3. The analysis by means of IR of the industrial DAP downstream from the recrystallization and pure commercial DAP (Fisher). of recrystallization. We also compare the recrystallized DAP to the between 273 and 400 K and at 400 rpm stirring rate. The suspension commercial DAP (Fisher). was dissolved in mixed solvent (70% water 30% alcohol). After À that we add a quantity of charcoal in the solution. The suspension 2. EXPERIMENTAL SECTION was filtered, and the solution was cooled to 273 K, whereupon crystals appeared. We recrystallized the DAP using a mixture of 2.1. Recrystallization. Crystallization experiments of DAP solvent, water, and alcohol. Impurities were analyzed by inductively (fertilizer synthesized in industry from Tunisia) were carried coupled plasma-optical emission spectroscopy (ICPOES). Figure 4. The analysis by MEB of the industrial DAP upstream and downstream from the recrystallization. Table 3. The Wavelength of the Vibration Mode of DAP KappaCCD Server Software (Nonius, 2004); program(s) used Upstream (ur) and Downstream (dr) from the Recrystalliza- to solve structure are SHELXS97. The spectra of X-ray powder tion and Pure Commercial DAP (Fisher) diffraction (XRPD) is determined by a Seifert 3000. T.T. spectrometer. band limit of pure commercial 1 8,9 bands absorption (cmÀ ) DAP (ur) DAP (dr) DAP (Fisher) PO 3- υ : 1000 800 954 886 893 3. RESULTS AND DISCUSSION 4 1 À υ : 500 300 531 454 451 The principal chemical compositions of the DAP upstream 2 À υ3: 1200 1000 1097 1076 1077 and downstream from the recrystallization are presented in À Table 1. After purification, the % P O and % N were increased υ4: 650 500 618 553 553 2 5 À while keeping the molar ratio (MR) range between 1.8 and 2.0. Also, after purification the percentage of H O and value of pH are NH ∂ : 1600 1575 1516 1516 1516 2 3 a À slightly changed but in the various ranges stated. There is 25% of ∂ : 1500 1300 1400 1403 1402 s À impurities by weight in the crude industrial DAP. Diammonium phosphate granules contain various com- NH þ υ : 3300 3030 3119 3119 3099 4 NH À pounds (Ca, Mg)(NH4)(Fe, Al)(PO4)(F, OH)H2O that are insoluble in water and can comprise up to 10% of the total P H O υ : 3600 3100 3119 3119 3099 7 2 OH À content of fertilizers. The DAP contains toxic elements such as (Cd, Zn, Cu, and Ni) which are toxic for plants and have the ff 2.2. Analytical and Testing Methods. P2O5 content in the potential for adverse e ects on human health due to the transfer solution is determined gravimetrically. The molar rapport of of metals from soils to food corps. Thus, it is important to ammonia to phosphoric acid (MR) was obtained by titration eliminate or reduce these toxic elements in DAP. The analysis of with standard 0.5 M NaOH and 0.5 M HCl solutions. The the DAP after purification is given in Table 2 and shows that the amount of HCl and NaOH added was used to calculate the MR quantity of impurity decreases. The results are comparable to that is equal to 2 (volume of NaOH/volume of HCl), according those of the commercial DAP (Fisher). to the method described in ref 5. A pH Meter was employed to After recrystallization, the melting point was found to be measure the pH values of slurries. N content in the solutions was 194 °C, close to the one of laboratory grade DAP (196 °C). determined by the Kejdahl method. Melting points were deter- The curve solubility of recrystallized DAP, that was deter- mined with a METTLER FP62 that uses a capillary tube. The mined following a standard procedure described by Mullin,6 is curve solubility was determined following a standard procedure shown in Figure1. The solubility of a solute is most conveniently described by Mullin.6 IR spectra were determined by a FTIR stated as the parts by weight per part (or 100 parts) by weight of system spectrum BX Perkin-Elmer spectrometer. The analysis by solvent. scanning electron microscope (SEM) is determined with a MEB The analysis by means of IR of the DAP before and after Philips serie XL 30. Data collection is realized by using recrystallization is presented in Figures 2 and 3. Table 4. Crystal Data Details and Structure Refinement of the Plant DAP Downstream from the Recrystallization and Commercially Pure DAP DAP pure commercial recrystallized DAP (Fisher) I. Crystal Data formula (NH4)2HPO4 (NH4)2HPO4 formula weight (g/mol) 132.06 132.06 system monoclinic monoclinic space group P21/cP21/c a (Å) 10.781(2) 10.729(5) b (Å) 6.771(2) 6.682(5) c (Å) 8.047(2) 8.009(5) 0 109.72(2) 109.670(5) V (Å3) 448.1 (2) 540.7(6) Z 44 3 Fcal (g cmÀ ) 1.600 1.622 Figure 5.
Load more

Recommended publications
  • Chemicals Used for Chemical Manufacturing Page 1 of 2
    Chemicals used for Chemical Manufacturing Page 1 of 2 Acetic Acid (Glacial, 56%) Glycol Ether PMA Acetone Glycol Ether PNB Acrylic Acid Glycol Ether PNP Activated Carbon Glycol Ether TPM Adipic Acid Glycols Aloe Vera Grease Aluminum Stearate Gum Arabic Aluminum Sulfate Heat Transfer Fluids Amino Acid Heptane Ammonium Acetate Hexane Ammonium Bicarbonate Hydrazine Hydrate Ammonium Bifluoride Hydrochloric Acid (Muriatic) Ammonium Chloride Hydrogen Peroxide Ammonium Citrate Hydroquinone Ammonium Hydroxide Hydroxylamine Sulfate Ammonium Laureth Sulfate Ice Melter Ammonium Lauryl Sulfate Imidazole Ammonium Nitrate Isobutyl Acetate Ammonium Persulfate Isobutyl Alcohol Ammonium Silicofluoride Calcium Stearate Dipropylene Glycol Isopropanolamine Ammonium Sulfate Carboxymethylcellulose Disodium Phosphate Isopropyl Acetate Antifoams Caustic Potash D'Limonene Isopropyl Alcohol Antifreeze Caustic Soda (All Grades) Dodecylbenzene Sulfonic Acid Isopropyl Myristate Antimicrobials Caustic Soda (Beads, Prills) (DDBSA) Isopropyl Palmitate Antimony Oxide Cetyl Alcohol Dowfrost Itaconic Acid Aqua Ammonia Cetyl Palmitate Dowfrost HD Jojoba Oil Ascorbic Acid Chlorine, Granular Dowtherm SR-1 Keratin Barium Carbonate Chloroform Dowtherm 4000 Lactic Acid Barium Chloride Chromic Acid EDTA Lanolin Beeswax Citric Acid (Dry and Liquid) EDTA Plus Lauric Acid Bentonite Coal Epsom Salt Lauryl Alcohol Benzaldehyde Cocamide DEA Ethyl Acetate Lecithin Benzoic Acid Copper Nitrate Ethyl Alcohol (Denatured) Lime Benzyl Alcohol Copper Sulfate Ethylene Glycol Linoleic Acid Bicarbonate
    [Show full text]
  • Safety Data Sheet (English)
    SAFETY DATA SHEET Diammonium Phosphate Prepared to U.S. OSHA, CMA, ANSI, Canadian WHMIS Standards, Australian WorkSafe, Japanese Industrial Standard JIS Z 7250:2000, Uruguay (Decree 307/2009 as amended by Decree 346/2011), SDS standards for Brazil (ABNT NRB 14725-4: 2014), and European Directives SECTION 1. PRODUCT IDENTIFICATION 1.1 TRADE NAME (AS LABELED): Diammonium Phosphate SYNONYMS: Ammonium Phosphate, Dibasic; Ammonium Phosphate, Secondary; DAP; Diammonium Phosphate Food grade; Diammonium Phosphate Tech Grade CAS#: 7783-28-0 EC NUMBER: 231-987-8 REACH REGISTRATION #: 01-2119490974-22-0057 1.2 PRODUCT USE: Nutrient in manufacture of yeast; ingredient in compound bread improvers. Flame retardant. pH regulator. Agriculture – Ingredient in specialty all-soluble dry fertilizers. Building Materials – Flame-proofing of wood. Paint – Ingredient in flame-proofing of specialty paper; prevention of afterglow in matches. Pulp and Paper – Flame-proofing of specialty paper; prevention of afterglow in materials. Textile – Flame-proofing of fabrics and cotton batting. Nutrient feed for biological treatment plants. 1.3 MANUFACTURER'S NAME: Innophos ADDRESS: 259 Prospect Plains Rd. Bldg A, Cranbury, NJ 08512 BUSINESS PHONE: 1-609-495-4295 WEB SITE INFORMATION: www.innophos.com RESPONSIBLE PARTY - EU Covance Clinical Development SA Parque Empresarial Las Tablas Edificio 1 Calle Federico Mompou 5-5ª planta 28050 Madrid, Spain Tel: +34 915 901 664 Email: [email protected] 1.4 EMERGENCY PHONE NUMBERS: 800-424-9300 (CHEMTREC U.S. and Canada – 24 Hrs) +1 703-527-3887 (CHEMTREC outside the USA and Canada – 24 Hrs) 615-386-7816 – Innophos Emergency Communication Team (ECT) 01-800-00214 00 (SETIQ in Mexico – 24 hrs) DATE OF PRIOR REVISION: November 16, 2017 DATE OF LATEST REVISION: February 09, 2020 SECTION 2.
    [Show full text]
  • United States Patent (19) 11 Patent Number: 5,883,058 Wells Et Al
    USOO5883058A United States Patent (19) 11 Patent Number: 5,883,058 Wells et al. (45) Date of Patent: *Mar 16, 1999 54 HIGH LATHER STYLING SHAMPOOS 4,784,801 11/1988 Hoeffkes et al. ....................... 252/554 5,084.212 1/1992 Farris et al. ............................ 252/554 (75) Inventors: Robert Lee Wells, Cincinnati, Ohio; 5,104,642 4/1992 Wells et al. ..... ... 424/47 Jon Robert Behrens, Kobe, Japan 5,120,532 6/1992 Wells et al. ............ ... 424/70 5,310,508 5/1994 Subramanyam et al. ............... 252/549 73) Assignee: The Procter & Gamble Company, 5,391,368 2/1995 Gerstein ............................... 424/70.13 5,514,302 5/1996 Brown ..................................... 252/545 Cincinnati, Ohio 5,580,494 12/1996 Sandhu et al. .......................... 510/125 Notice: The term of this patent shall not extend FOREIGN PATENT DOCUMENTS beyond the expiration date of Pat. No. 5,672.576. 0323715 12/1989 European Pat. Off.. Appl. No.: 520,631 Primary Examiner Paul Lieberman Assistant Examiner Necholas Ogden Filed: Aug. 29, 1995 Attorney, Agent, or Firm Joan B. Tucker; William J. Int. Cl." ................................................ C110 1/83 Winter; Tara M. Rosnell U.S. Cl. .......................... 510/127; 510/119,510/123; 57 ABSTRACT 510/125; 424/70.11; 424/70.24 The present invention relates to hair shampoo compositions Field of Search ..................................... 252/549, 550, which have improved cleansing, lathering, and Styling ben 252/551, 557; 510/119, 123,125, 127; efits=. These Shampoo compositions comprise an alkyl glyc 424/70.24, 70.11 eryl ether Sulfonate Surfactant, a hair Styling polymer, a 56) References Cited non-polar volatile Solvent, and water.
    [Show full text]
  • (DAP) Diammonium Phosphate Safety Data Sheet 200 Revision Date:04/30/2015 : Version: 1.0
    (DAP) Diammonium phosphate Safety Data Sheet 200 Revision date:04/30/2015 : Version: 1.0 SECTION 1: Identification of the substance/mixture and of the company/undertaking 1.1. Product identifier Product form : Substance Substance name : (DAP) Diammonium phosphate Product code : DAP, DAPFR,DAPOS, DAPLG CAS No. : 7783-28-0 Formula : (NH4)2HPO4 Synonyms : Ammonium phosphate, dibasic / Diammonium hydrogenorthophosphate / Phosphoric acid, diammonium salt / Diammonium hydrogenphosphate / Ammonium phosphate dibasic / Diammonium hydrogen phosphate / Diammonium hydrogen orthophosphate / Phosphoric acid, ammonium salt (1:2) / DIAMMONIUM PHOSPHATE / DAP Product group : Commercial product Other means of identification : DAP, DAPLG 1.2. Relevant identified uses of the substance or mixture and uses advised against Use of the substance/preparation : Agricultural chemical No additi onal infor mati on available 1.3. Details of the supplier of the safety data sheet PCS Sales (USA), Inc. 1101 Skokie Blvd. Suite 400 Northbrook, IL 60062 T 800-241-6908 / 847-849-4200 Suite 500 122 1st Avenue South Saskatoon, Saskatchewan Canada S7K7G3 T 800-667-0403 (Canada) / 800-667-3930 (USA) [email protected] - www.PotashCorp.com 1.4. Emergency telephone number Emergency number : 800-424-9300 CHEMTREC SECTION 2: Hazards identification 2.1. Classification of the substance or mixture GHS-US classification Skin Irrit. 2 H315 Eye Irrit. 2B H320 STOT SE 3 H335 Aquatic, Acute 2 H401 04/30/2015 EN (English) SDS Ref.: 200 1/10 (DAP) Diammonium phosphate Safety Data Sheet 200 Full text of H-phrases: see section 16 2.2. Label elements GHS-US labelling Hazard pictograms (GHS-US) : GHS07 Signal word (GHS-US) : Warning Hazard statements (GHS-US) : H315 - Causes skin irritation H320 - Causes eye irritation H335 - May cause respiratory irritation H401 - Toxic to aquatic life.
    [Show full text]
  • Safety Data Sheet
    Material name: Diammonium phosphate SDS BRAZIL SDS No. - Version #: 02 Issue date: 17-January-2013 Revision date: 24-October-2013 1 / 6 SAFETY DATA SHEET 1. Identification Name of the substance or Diammonium phosphate mixture (trade name) Synonyms Phosphoric acid, diammonium salt * Diammonium hydrogenorthophosphate * Diammonium hydrophosphate * DAP MSDS Number KFB_DAP_GHS_EN Major recommended uses for Fertilizer the substance or mixture Fertilizer. Specific restrictions for use of Not available. the substance or mixture Manufacturer/Importer/Distributor information Manufacturer Manufacturer/Supplier Koch Fertilizantes do Brasil Address Rua Joaquim Floriano 1.120 1 andar Cj. 12 Sao Paolo, SP BRASIL E-mail [email protected] Telephone +011 55 41 92263400 +1 316 828 7672 Emergency telephone For Chemical Emergency number Call CHEMTREC day or night USA/Canada - 1.800.424.9300 Outside USA/Canada 1.703.527.3887 (collect calls accepted) 2. Hazards identification Classification of the substance or mixture Physical hazards Not classified. Health hazards Not classified. Environmental hazards Not classified. Other hazards which do Not classified. not result in classification GHS labeling elements, including precautionary statements Hazard symbol(s) No symbol. Signal word No signal word. Hazard statement(s) Not available. Precautionary statement(s) Prevention Wear eye/face protection. Response Wash hands after handling. Storage Store away from incompatible materials. Disposal Dispose of waste and residues in accordance with local authority requirements. 3. Composition/information on ingredients Substance Common chemical name or technical name CAS number Concentration or concentration range Diammonium phosphate 7783-28-0 100 Material ID #: 902617 Material name: Diammonium phosphate SDS BRAZIL SDS No. - Version #: 02 Issue date: 17-January-2013 Revision date: 24-October-2013 2 / 6 Composition comments All concentrations are in percent by weight unless ingredient is a gas.
    [Show full text]
  • Material Safety Data Sheet
    Effective Date: June 19, 2001 Material Safety Data Sheet For Emergency Call: CHEMTREC -- (800) 424-9300 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION Product Name: Diammonium Phosphate (DAP) CAS Number: 7783-28-0 Chemical Name: Ammonium phosphate, dibasic Chemical Family: Ammonium phosphates Synonyms and Common Trade Names: Ammonium phosphate; diammonium hydrogen phosphate; dibasic ammonium phosphate; secondary ammonium phosphate; DAP Company Identification Manufacturer's Name: CF Industries, Inc. Address: One Salem Lake Drive, Long Grove, Illinois, 60047-8402 Telephone: (847) 438-9500 2. COMPOSITION/INFORMATION ON INGREDIENTS Typical Weight Component Name Percentage CAS Number Diammonium phosphate 60-85 7783-28-0 Aluminum ammonium fluorophosphates 4-10 Not applicable Iron ammonium fluorophosphates 3-7 Not applicable Ammonium sulfate 4-5 7783-20-2 Calcium ammonium phosphates 2 Not applicable Water 1-2 7732-18-5 Sodium silicofluoride <2 16893-85-9 Potassium silicofluoride <1 16871-90-2 Miscellaneous metal, ammonium and <1 each Not applicable other compounds Page 1 of 7 Effective Date: June 19, 2001 3. HAZARDS IDENTIFICATION Emergency Overview Harmful if swallowed or inhaled. At high temperatures, diammonium phosphate emits toxic fumes of phosphorous oxides, nitrogen oxides and ammonia. It is irritating to the eyes, skin, throat and respiratory tract. Brown to gray granules that are odorless or give off a slight ammonia odor. Potential Health Effects Eyes: Contact may cause mild eye irritation including stinging, watering and redness. Skin: Contact may cause mild irritation including redness and a burning sensation. Practically nontoxic by by skin absorption. Inhalation (Breathing): No information available. Studies by other exposure routes suggest a low degree of hazard by skin irritation.
    [Show full text]
  • Diammonium Phosphate (DAP)
    Effective Date: July 1, 2003 Material Safety Data Sheet For Emergency Call: CHEMTREC -- (800) 424-9300 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION Product Name: Diammonium Phosphate (DAP) CAS Number: 7783-28-0 Product Uses: Agricultural industry: Fertilizer Industrial applications: Flame retardant agent. Corrosion inhibitors. Chemical Name: Ammonium phosphate, dibasic Chemical Family: Ammonium phosphates Synonyms and Common Trade Names: Ammonium phosphate; diammonium hydrogen phosphate; dibasic ammonium phosphate; secondary ammonium phosphate; DAP Company Identification: Manufacturer's Name: CF Industries, Inc. Address: One Salem Lake Drive, Long Grove, Illinois, 60047-8402 Telephone: (847) 438-9500 2. COMPOSITION/INFORMATION ON INGREDIENTS Typical Weight Component Name Percentage CAS Number Diammonium phosphate 60-85 7783-28-0 Aluminum ammonium phosphates 4-10 Not applicable Iron ammonium phosphates 3-5 Not applicable Ammonium sulfate 4-5 7783-20-2 Fluorides, as F 2-3 Not applicable Calcium ammonium phosphates 1-2 Not applicable Water 1-3 7732-18-5 Ammonium Nitrate <1 6484-52-2 Urea <1 57-13-6 Miscellaneous metal, ammonium and <1 each Not applicable other compounds Page 1 of 7 Effective Date: July 1, 2003 3. HAZARDS IDENTIFICATION Emergency Overview Caution! Eye and skin irritant. When heated to decomposition diammonium phosphate may emit toxic fumes of phosphorous oxides, nitrogen oxides and ammonia. Do not taste or swallow. Wash thoroughly after handling. Wear appropriate personal protection equipment. Slippery when wet. Brown to black granules that are odorless or give off a slight ammonia odor. Potential Health Effects: Eyes: Eye irritant. Contact may cause stinging, watering, redness and swelling. Skin: Skin irritant. Contact may cause redness, itching, burning and skin damage.
    [Show full text]
  • SIAM 24, 17-20 April 2007 US/ICCA
    SIAM 24, 17-20 April 2007 US/ICCA SIDS INITIAL ASSESSMENT PROFILE CAS Nos. 7722-76-1, 7783-28-0, 68333-79-9, 8011-76-5, 65996-95-4 Phosphate category: Monoammonium phosphate (MAP), Chemical Names Diammonium phosphate (DAP), Ammonium polyphosphate (APP), Single superphosphate (SSP), Triple superphosphate (TSP) MAP: NH4H2PO4 DAP: (NH4)2HPO4 Structural Formula APP: SSP: main components:Ca(H2PO4)2. H2O /CaSO4.H2O TSP: CaHPO4.2H2O SUMMARY CONCLUSIONS OF THE SIAR Category/Analogue Rationale The category consists of monoammonium phosphate (MAP; CAS No. 7722-76-1), diammonium phosphate (DAP; CAS No. 7783-28-0), ammonium polyphosphate (APP; CAS No. 68333-79-9), single superphosphate (SSP; CAS No. 8011-76-5), and triple superphosphate (TSP; CAS No. 65996-95-4). All members of the category are mainly or exclusively used as fertilizer and have one common functional group (phosphate) that equilibrates between several different ionic species - = = -3 [H3PO4, H2PO4 , HPO4 , HPO4 , or PO4 ] depending on the pH of the environment. Thus, chemical reactions for all compounds in this category are similar with the exception of the actual dissociation product, which forms calcium or ammonia along with common phosphate moieties. However, the presence of the ammonium ion will influence the observed toxicity and its data are used to conservatively represent the toxicity of the category members. Under typical environmental conditions, the phosphate would be present as monohydrogen = - - phosphate (HPO4 ) or dihydrogen phosphate (H2PO4 ) with the equilibrium favoring H2PO4 as the acidity of the environment increases. Under these conditions, the proportions of phosphoric acid -3 (H3PO4) and the phosphate anion (PO4 ) would be extremely low.
    [Show full text]
  • MATERIAL SAFETY DATA SHEET DAP—Diammonium Phosphate Page 1 of 8
    IMC MATERIAL SAFETY DATA SHEET DAP—Diammonium Phosphate Page 1 of 8 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION Product Name: DAP—Diammonium Phosphate Chemical Name: Dibasic Ammonium Phosphate Chemical Family: Ammonium Phosphates—Inorganic Salt Synonyms/Brands: Ammonium Phosphate Dibasic DAP Fertilizer Grade Ammonium Phosphate 18-46-0 Chemical Formula: (NH4)2HPO4 Primary Use: Crop nutrient Responsible Party: IMC Phosphates 100 South Saunders Road, Suite 300 Lake Forest, IL 60045-2561 Non-Emergency 8:00 am – 4:00 pm Central Time, Mon - Fri: 800-323-5523 or 847-739-1200 Technical Contact: EMERGENCY OVERVIEW 24 Hour Emergency Telephone Number: For Chemical Emergencies: Spill, Leak, Fire or Accident Call CHEMTREC North America: (800) 424-9300 Others: (703)527-3887 (collect) Health Hazards: Eye and skin irritant. Avoid contact with eyes, skin and clothing. Wash thoroughly after handling. Physical Hazards: Slippery when wet. Physical Form: Solid. Appearance: Gray, tan, black granules. Odor: Slight ammonia odor. NFPA HAZARD CLASS HMIS HAZARD CLASS Health: 2 (Moderate) Health: 2 (Moderate) Flammability: 0 (Least) Flammability: 0 (Least) Instability: 0 (Least) Physical Hazard: 0 (Least) Special Hazard: None Status: Revised Issue Date: August 8, 2003 Revised Sections: 1, 2, 3, 4, 11, 12 MSDS # IGL 001 IMC MATERIAL SAFETY DATA SHEET DAP—Diammonium Phosphate Page 2 of 8 2. COMPOSITION/INFORMATION ON INGREDIENTS % Exposure Guideline Component Weight Limits Agency Type Diammonium Phosphate OSHA CAS No. 7783-28-0 85-87 NE All ACGIH (pure dibasic ammonium phosphate) Ammonium Nitrate OSHA <1.0 NE All CAS No. 6484-52-2 ACGIH Urea OSHA <1.0 NE All CAS No.
    [Show full text]
  • Prohibited and Restricted Chemical List
    School Emergency Response Plan and Management Guide Prohibited and Restricted Chemical List PROHIBITED AND RESTRICTED CHEMICAL LIST Introduction After incidents of laboratory chemical contamination at several schools, DCPS, The American Association for the Advancement of Science (AAAS) and DC Fire and Emergency Management Services developed an aggressive program for chemical control to eliminate student and staff exposure to potential hazardous chemicals. Based upon this program, all principals are required to conduct a complete yearly inventory of all chemicals located at each school building to identify for the removal and disposal of any prohibited/banned chemicals. Prohibited chemicals are those that pose an inherent, immediate, and potentially life- threatening risk, injury, or impairment due to toxicity or other chemical properties to students, staff, or other occupants of the school. These chemicals are prohibited from use and/or storage at the school, and the school is prohibited from purchasing or accepting donations of such chemicals. Restricted chemicals are chemicals that are restricted by use and/or quantities. If restricted chemicals are present at the school, each storage location must be addressed in the school's written emergency plan. Also, plan maps must clearly denote the storage locations of these chemicals. Restricted chemicals—demonstration use only are a subclass in the Restricted chemicals list that are limited to instructor demonstration. Students may not participate in handling or preparation of restricted chemicals as part of a demonstration. If Restricted chemicals—demonstration use only are present at the school, each storage location must be addressed in the school's written emergency plan. Section 7: Appendices – October 2009 37 School Emergency Response Plan and Management Guide Prohibited and Restricted Chemical List Following is a table of chemicals that are Prohibited—banned, Restricted—academic curriculum use, and Restricted—demonstration use only.
    [Show full text]
  • Chemical Resistance 100% SOLIDS EPOXY SYSTEMS
    Chemical Resistance 100% SOLIDS EPOXY SYSTEMS CHEMICAL 8300 SYSTEM 8200 SYSTEM 8000 SYSTEM OVERKOTE PLUS HD OVERKOTE HD OVERKRETE HD BASED ON ONE YEAR IMMERSION TESTING –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Acetic Acid (0-15%) G II Acetonitrile LLG L Continuous Immersion Acetone (0-20%) LLL Acetone (20-30%) Suitable for continuous immersion in that chemical (based on LLG Acetone (30-50%) L G I ONE YEAR testing) to assure unlimited service life. Acetone (50-100%) G II Acrylamide (0-50%) LLL G Short-Term Exposure Adipic Acid Solution LLL Alcohol, Isopropyl LLL Suitable for short-term exposure to that chemical such as Alcohol, Ethyl LLG secondary containment (72 hours) or splash and spill Alcohol, Methyl LLI (immediate clean-up). Allyl Chloride LLI Allylamine (0-20%) L L I Allylamine (20-30%) L G I I Not Suitable Allylamine (30-50%) GGI Not suitable for any exposure to that chemical. Aluminum Bromide LL– Aluminum Chloride L L – Aluminum Fluoride (0-25%) L L – This chart shows chemical resistance of our various Aluminum Hydroxide LLL 1 topping materials (90 mils – ⁄4"). These ratings are based on Aluminum Iodide LL– temperatures being ambient. At higher temperatures, chemical Aluminum Nitrate LL– resistance may be effected. When chemical exposure is Aluminum Sodium Chloride L L – minimal to non-existent, a 9000 System–FlorClad™ HD or Aluminum Sulfate LLL 4600 System– BriteCast™ HD may be used. Alums L L L 2-Aminoethoxyethanol Resistance data is listed with the assumption that the material GGG has properly cured for at least four days, at recommended Ammonia – Wet L L – temperatures, prior to any chemical exposure.
    [Show full text]
  • Unloading Standards and Prescriptions on Deposit And
    APPENDIX III TO THE IMPLEMENTING REGULATION Unloading standards and prescriptions on deposit and reception with a view to authorising the discharge of wash water, rainwater and ballast water containing cargo residues -1- Unofficial version Unloading standards and prescriptions on deposit and reception with a view to authorising the discharge of wash water, rainwater and ballast water containing cargo residues Replaced by Resolution 2009-II-2; Amended by Resolution 2011-I-5 Preliminary remarks When discharging wash water, rainwater or ballast water with cargo residues from holds or cargo tanks that comply with the unloading standards defined in Part B, Article 5.01 of the Implementing Regulation, the regulations governing deposit/reception applicable to the cargo and to the hold and cargo tank unloading standard will be found in the following table. The columns of the table have the following meaning: 1. Column 1: Goods number according to the standard goods classification for transport statistics (NST) 2. Column 2: Type of goods as described in the NST 3. Column 3: Wash water, rainwater or ballast water may be discharged into the river provided that prior to washing the relevant unloading standard has been complied with: A: swept hold or stripped tank or B: vacuum cleaned hold. 4. Column 4: Deposit of the wash water, rainwater or ballast water for discharging into the sewer system via the connections provided for that purpose provided that prior to washing the relevant unloading standard has been complied with: A: swept hold or stripped tank or B: vacuum cleaned hold. 5. Column 5: Depositing of the wash water, rainwater or ballast water to reception stations for special treatment S.
    [Show full text]